对角占优矩阵和块对角占优矩阵的充分条件

Sufficient Conditions for Generalized Diagonally Dominant Matrices and Block Diagonally Dominant Matrices

介绍了α-对角占优矩阵的概念,给出了广义严格对角占优矩阵新的判定条件,改进和推广了先前有关文献的相应的结果。

In this paper, we introduce the concept of a-diagonally dominant matrix, and give some new criteria conditions for generalized strictly diagonally dominant matrices ,thus the corresponding results in [1-3]are generalized and improved.